Xylem Lab 960 User Manual
Operating manual
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Lab 960
Lab 960
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DRAFT: November 13, 2009
Laboratory conductivity meter
Lab 960
Accuracy when going to
press
Warranty We guarantee the instrument described for 3 years from the date of
The use of advanced technology and the high quality standard of our
instruments are the result of continuous development. This may result
in differences between this operating manual and your instrument.
Also, we cannot guarantee that there are absolutely no errors in this
manual. Therefore, we are sure you will understand that we cannot
accept any legal claims resulting from the data, figures or descriptions.
purchase.
The instrument warranty covers manufacturing faults that are
discovered within the warranty period.
The warranty does not cover components that are replaced during
maintenance work, e. g. batteries.
The warranty claim extends to restoring the instrument to readiness for
use but not, however, to any further claim for damages. Improper
handling or unauthorized opening of the instrument invalidates any
warranty claim.
To ascertain the warranty liability, return the instrument and proof of
purchase together with the date of purchase freight paid or prepaid.
Copyright
© 2009, SI Analytics GmbH
Reprinting - even in the form of excerpts - is only allowed with the
explicit written authorization of SI Analytics GmbH.
Printed in Germany.
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Lab 960
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DÉCLARATION DE CONFORMITÉ
Wir erklären in alleiniger
Verantwortung, dass das
Produkt
Konduktometer
Lab 960
auf das sich diese Erklärung
bezieht, übereinstimmt mit
den Angaben im Kapitel
We declare under our sole
responsibility that the
product
Conductivity meter
Lab 960
to which this declaration
relates is in conformity with
the specifications in the
chapter
Nous déclarons sous notre
seule responsabilité que le
produit
Conductimètre
Lab 960
auquel se réfère cette
déclaration est conforme aux
indications du chapitre
30. Oktober, October 30, 30 octobre 2009
AGQSF 0000-A103-01/091030
SI Analytics GmbH
Hattenbergstr. 10
D-55122 Mainz
Deutschland, Germany, Allemagne
Technische Daten
Konduktometer
Lab 960
30. Oktober 2009
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Lab 960
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Lab 960 Contents
Lab 960 - Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 12
3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 General operating principles . . . . . . . . . . . . . . . . . . . . . . 20
4.2.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.1 Measuring the conductivity. . . . . . . . . . . . . . . . . 22
4.3.2 Measuring the resistivity. . . . . . . . . . . . . . . . . . . 22
4.3.3 Measuring the salinity . . . . . . . . . . . . . . . . . . . . 23
4.3.4 Measuring the total dissolved solids (TDS) . . . . 24
4.3.5 Measuring with stability control . . . . . . . . . . . . . 25
4.4 Determining/setting up the cell constant [C] . . . . . . . . . . 26
4.4.1 Determining the cell constant (calibration). . . . . 26
4.4.2 Using the last calibrated cell constant . . . . . . . . 29
4.4.3 Setting the cell constant manually . . . . . . . . . . . 30
4.5 Setting the temperature compensation TC . . . . . . . . . . . 34
4.6 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.6.1 Manual storage . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.6.2 Automatic storage at intervals . . . . . . . . . . . . . . 40
4.6.3 Downloading the data storage . . . . . . . . . . . . . . 42
4.6.4 Erasing the data memory . . . . . . . . . . . . . . . . . . 43
4.6.5 Downloading calibration data . . . . . . . . . . . . . . . 43
4.7 Transmitting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.7.1 Options for data transmission . . . . . . . . . . . . . . 45
4.7.2 Automatically downloading measurement datasets
at intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.7.3 Downloading stored measurement datasets . . . 46
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Contents Lab 960
4.7.4 Downloading calibration data . . . . . . . . . . . . . . . 46
4.7.5 RS232 interface . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.7.6 USB interface (device) . . . . . . . . . . . . . . . . . . . . 47
4.7.7 Operation with MultiLab pilot . . . . . . . . . . . . . . . 47
4.8 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.8.1 System settings . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.8.2 Measurement settings . . . . . . . . . . . . . . . . . . . . 51
4.8.3 Interval for automatic storing (AutoStore) . . . . . . 53
4.8.4 Interval for automatic data transmission . . . . . . . 54
4.9 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.9.1 Resetting the cell constant . . . . . . . . . . . . . . . . . 55
4.9.2 Resetting meter settings. . . . . . . . . . . . . . . . . . . 56
5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 59
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.1.1 Replacing the batteries. . . . . . . . . . . . . . . . . . . . 59
5.2 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 65
8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
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Lab 960 Overview
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1Overview
The Lab 960 compact precision conductivity meter enables you to
perform conductivity measurements quickly and reliably. The Lab 960
provides the maximum degree of operating comfort, reliability and
measuring certainty for all applications.
The proven procedures for determining or adjusting the cell constant
support your work with the conductivity meter.
1 Keypad
2 Display
3 Socket field
Note
The meter is also available as part of an individual Set of equipment.
You will find information on this and other accessories in the SI
Analytics GmbH laboratory catalog or via the Internet.
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Overview Lab 960
STO
RCL
MODE SC
CAL
MODE
CAL
SC
STOSTO
RCL
1.1 Keypad
In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <OK>) generally indicates a short keystroke
(under 2 sec) in this operating manual. A long keystroke (approx.
2 sec) is indicated by the underscore behind the key symbol (e.g.
<OK
_>).
<On/Off>:
<On/Off
<MODE>:
<MODE
<CAL>:
<CAL
<SC>:
<SC
<STO>:
<STO
_>:
_>:
_>:
_>:
_>:
Switch the meter on/off
Resetting the determined cell constant
Select measured parameter
Open setting menu for calibration and
measurement
Call up calibration procedure
Call up calibration data
Activate / deactivate stability control
Set the interval for data transmission
Store measured value
Set the interval for automatic storing
processes
8
<RCL>:
<RCL
_>:
<▲>: Increment values, scroll
Display / transmit measured values
and calibration records
Erase stored measured values
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Lab 960 Overview
Measured variable
Measured value
display
Temperature
display, function
display indicators,
status display
indicators
<▼>: Decrement values, scroll
<OK>:
<OK
1.2 Display
_>:
Confirm entries
Open setting menu for system settings
Temperature display,
function display
indicators, status
display indicators
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[AR] Stability control is active
[ARng] Automatic range switch-over: meter measures with
highest possible resolution
[Auto][Store] Automatic storing is switched on
[Cal] Calibration
[Lin] Linear temperature compensation
[LoBat] With battery operation: Batteries almost empty
[nLF] Nonlinear temperature compensation
[RCL] Memory display / memory download
[TP] Temperature measurement active
[Tref20] Reference temperature 20 °C
[Tref25] Reference temperature of 25 °C
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Overview Lab 960
1.3 Socket field
Connectors:
1 Conductivity measuring cell
2 Temperature sensor
3
4 USB interface
5 Power pack
6 RS 232 interface
CAUTION
Only connect sensors to the meter that cannot return any voltages
or currents that are not allowed (> SELV and > current circuit with
current limiting).
Almost all measuring cells - in particular SI Analytics GmbH
measuring cells - fulfill these conditions.
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Lab 960 Safety
2 Safety
This operating manual contains basic instructions that you must follow
during the commissioning, operation and maintenance of the meter.
Consequently, all responsible personnel must read this operating
manual before working with the meter.
The operating manual must always be available within the vicinity of the
instrument.
Target group The meter was developed for work in the laboratory.
Thus, we assume that, as a result of their professional training and
experience, the operators will know the necessary safety precautions
to take when handling chemicals.
Safety instructions Safety instructions in this operating manual are indicated by the
warning symbol (triangle) in the left column. The signal word (e.g.
"Caution") indicates the level of danger:
Further notes
WARNING
indicates instructions that must be followed precisely in order to
avoid possibly great dangers to personnel.
CAUTION
indicates instructions that must be followed precisely in order to
avoid the possibility of slight injuries or damage to the instrument
or the environment.
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating
manuals.
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Safety Lab 960
2.1 Authorized use
Authorized use of the meter consists exclusively of the measurement
of conductivity, temperature, salinity and TDS (total dissolved solids) in
a laboratory.
The technical specifications as given in chapter 7 T
ECHNICAL DATA
(page 63) must be observed. Only the operation and running of the
meter according to the instructions given in this operating manual is
authorized.
Any other use is considered unauthorized.
2.2 General safety instructions
This instrument is constructed and tested in compliance with the IEC
1010 safety regulations for electronic measuring instruments.
It left the factory in a safe and secure technical condition.
Function and
operational safety
The smooth functioning and operational safety of the meter can only be
guaranteed if the generally applicable safety measures and the specific
safety instructions in this operating manual are followed during
operation.
The smooth functioning and operational safety of the meter can only be
guaranteed under the environmental conditions that are specified in
chapter 7 T
ECHNICAL DATA (page 63).
If the instrument was transported from a cold environment to a warm
environment, the formation of condensate can lead to the faulty
functioning of the instrument. In this event, wait until the temperature of
the instrument reaches room temperature before putting the instrument
back into operation.
CAUTION
The meter is only allowed to be opened by personnel authorized
by SI Analytics GmbH.
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Lab 960 Safety
Safe operation If safe operation is no longer possible, the instrument must be taken out
of service and secured against inadvertent operation!
Safe operation is no longer possible if the meter:
z has been damaged in transport
z has been stored under adverse conditions for a lengthy period of
time
z is visibly damaged
z no longer operates as described in this manual.
If you are in any doubt, please contact the supplier of the meter.
Obligations of the
purchaser
The purchaser of this meter must ensure that the following laws and
guidelines are observed when using dangerous substances:
z EEC directives for protective labor legislation
z National protective labor legislation
z Safety regulations
z Safety datasheets of the chemical manufacturers.
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Safety Lab 960
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Lab 960 Commissioning
3 Commissioning
3.1 Scope of delivery
z Lab 960 laboratory meter
z Power pack
z 4 batteries 1.5 V Mignon type AA
z Z875 USB cable with A plug on B plug
z Transparent cover
z Operating manual
z CD-ROM with USB driver
3.2 Initial commissioning
Insert batteries
Perform the following activities:
z Insert batteries
z Switch on the meter
z Set the date and time
z Connect the power pack (for line power operation only).
1 Open the battery compartment (1) on the underside of the
meter.
2 Place four batteries (type Mignon AA) in the battery
compartment.
3 Close the battery compartment (1).
The date (day) flashes in the display.
4 Set the date and time according to page 43.
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Commissioning Lab 960
CAUTION
Make sure that the poles of the batteries are the right way round.
The
± signs on the batteries must correspond to the ± signs in the
battery compartment.
Only use leakproof alkaline manganese batteries.
Switching on the meter
Setting the date and
time
Connecting the power
pack
1 Switch on the meter with <On/Off>.
A display test is briefly displayed.
2 See page 49
You can either operate the measuring instrument with batteries or with
the plug-in power supply. The plug-in power supply supplies the measuring instrument with low voltage (12 VDC). This saves the batteries.
CAUTION
The line voltage at the operating site must lie within the input
voltage range of the original power pack (see page 63).
CAUTION
Use original power packs only (see page 63).
3 Insert the plug into the socket of the conductivity meter.
4 Connect the original power pack to an easily accessible power
outlet.
16
Note
You can carry out measurements without the power pack.
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Lab 960 Commissioning
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Commissioning Lab 960
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Lab 960 Operation
4 Operation
4.1 Switching on the meter
1 Place the meter on a flat surface and protect it from intense
light and heat.
2 Press the <On/Off>
A display test is briefly displayed.
Subsequently, the meter switches to the measuring mode
(measured value display).
Note
The meter has an energy saving feature to avoid unnecessary battery
depletion during battery operation.
The energy saving feature switches off the meter if no key was pressed
during the specified interval (setting the switch-off interval see
page 49).
The energy saving feature is not active:
z if the meter is supplied via the power pack or the USB interface
z if the automatic storing function is active (see page 40)
z if a PC is connected (with communication cable to RS232 interface)
z if the printer cable is connected (for external printers).
key.
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Operation Lab 960
4.2 General operating principles
This section contains basic information of the operation of the Lab 960.
4.2.1 Operating modes
The instrument has the following operating modes:
z Measuring
The display indicates the measurement data in the measured value
display
z Calibration
The display guides you thru a calibration procedure with calibration
information
z Storage in memory
The meter stores measuring data automatically or manually
z Transmitting data
The meter transmits measuring data and calibration records to a
serial interface automatically or manually.
z Configuration
The system menu or a sensor menu with submenus, settings and
functions is displayed
4.2.2 Operation
Keys The meter is operated via keys. The keys can have different functions
with long or short keystrokes.
Functions Generally, with a short keystroke a function is carried out. A long
keystroke opens a setting menu.
In a setting menu, settings are selected with the <▲><▼> keys.
A setting is confirmed with <OK>. With confirming, the setting is
finished and the next setting is displayed.
Representation In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <OK>) generally indicates a short keystroke
(under 2 sec) in this operating manual. A long keystroke (approx.
2 sec) is indicated by the underscore behind the key symbol (e.g.
<OK
_>).
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Lab 960 Operation
4.3 Measuring
Preparatory activities Perform the following preparatory activities when you want to measure:
1 Connect a measuring cell to the meter.
2 Adjust the temperature of the test solutions and measure the
current temperature if the measurement is made without a
temperature sensor.
3 Calibrate or check the meter with the measuring cell.
4 Select the measured parameter with <MODE>.
CAUTION
When connecting an earthed PC/printer, measurements cannot be
performed in earthed media as incorrect values would result.
The RS232 and USB interfaces are not galvanically isolated.
Temperature sensor The temperature measurement is absolutely essential for a
reproducible conductivity measurement. If a temperature sensor is
connected, it is indicated on the display by TP.
If you use a conductivity measuring cell without integrated temperature
sensor, we recommend to use an external temperature sensor.
Note
The conductivity meter automatically recognizes the type of the
temperature sensor used. Therefore, you can connect measuring cells
with an NTC30 or Pt1000.
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Operation Lab 960
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Tref25
4.3.1 Measuring the conductivity
1 Perform the preparatory activities according to page 21.
2 Immerse the conductivity measuring cell in the test sample.
3 If necessary, scroll with <MODE> until the measured
parameter
4 Wait for a stable measured value.
ӕ with the unit mS/cm or µS/cm is displayed.
5 Measurement with stability control (see page 25).
4.3.2 Measuring the resistivity
1 Perform the preparatory activities according to page 21.
2 Immerse the conductivity measuring cell in the test sample.
3 If necessary, scroll with <MODE> until the measured
parameter
4 Wait for a stable measured value.
ӕ with the unit MOhm is displayed.
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Lab 960 Operation
2
1
2
3
2
3
C
°
Sal
nLF
TP
5 Measurement with stability control (see page 25).
4.3.3 Measuring the salinity
1 Perform the preparatory activities according to page 21.
2 Immerse the conductivity measuring cell in the test sample.
3 Using <MODE>, scroll as necessary until the measured
parameter Sal is displayed.
4 Wait for a stable measured value.
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5 Measurement with stability control (see page 25).
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Operation Lab 960
0
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3
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3
TDS
mg/l
Tref25
nLF
7
8
0
3
1
3
TDS
mg/l
Tref25
nLF
4.3.4 Measuring the total dissolved solids (TDS)
1 Perform the preparatory activities according to page 21.
2 Immerse the conductivity measuring cell in the test sample.
3 Using <MODE>, scroll as necessary until the measured
parameter TDS is displayed.
4Using <▲><▼>, set the TDS factor (0.40 ... 1.00).
5 Wait for a stable measured value.
6 Measurement with stability control (see page 25).
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